Hedra Character 3
A frontier video generation model developed by Hedra: creates realistic talking head videos with perfect lip-sync.
TL;DR
Best choice for creating talking head videos with realistic speech and expressions. Perfect for AI spokespersons, product explainers, and mascot videos
Strengths for marketers
Consistent faces: Maintains character appearance throughout longer videos.
Great lip-sync: Realistic mouth movements that match any audio perfectly.
Omnimodal processing: Handles image and audio together for seamless integration.
Complete control: Provide your own script and voice for total creative control.
Ideal use cases
Any scenario where you want a face to speak directly to the camera:
Talking mascots: Bring brand characters to life with personality and voice (e.g., TikTok short clips).
AI UGC content: Create authentic-looking user testimonials and reviews.
Product explainers: Have spokespersons explain features and benefits clearly.
Multilingual campaigns: Use the same face with different language audio tracks.
Weaknesses
Limited to talking head scenarios only, full-body movement less stable than facial expressions
Background typically remains static during generation
Requires separate audio file generation, limiting use cases
How to use effectively
Prepare well your inputs: provide clear portrait image (start frame), clean audio (script), and descriptive text (facial expressions).
Key tips:
Use high-quality portrait images with clear facial features
Provide clean, clear audio files for best lip-sync results
Include text descriptions for desired expressions and mood
Keep scripts conversational for realistic delivery
Model parameters
Inputs accepted
Text + 1 Reference Image (starting frame) + 1 audio file (character voice)
Output characteristics
Default Resolution: 720p
Duration options: 60s max - depends on the length of your script
Available Aspect Ratios: 1:1, 16:9, 9:16
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